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Removable Partial Pros: Final Practice Exam > Final 2018 > Flashcards

Final 2018 Flashcards

1
Q

Which of the following are done last?

  • framework try in
  • create rests
  • CR record
  • Altered Cast
A

Centric Relation

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2
Q

How far distally should the denture base extend in a class 1 distal extension case?

A

2/3 up the retromolar pad

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3
Q

How far distally should the retention extend for a distal extension case?

A

Extends to 2/3 from the guide plate to 2/3 of the retromolar pad

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4
Q

Which of the following is the hardest to obtain with distal extension cases?

A

VDO record

vertical dimension of Occlusion

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5
Q

What is a Cast Stop?

A

a. Essential to prevent displacement/deformation of metal framework during resin packing procedures
i. projects from tissue surface of the minor connector to contact the dental cast

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6
Q

Wax patterns are made on the

A

refractory cast

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7
Q

_______: resists vertical movement towards tissues -resistance to vertical
seating (retention prevent vertical dislodgement) - most important to oral health

A

support

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8
Q

Which of the following is true

a. The completed RPD must be passive
b. Should not exert forces on the teeth or soft tissue
c. The tip of each retentive clasp should lie passively in a measured undercut
d. A and B are correct
e. All of the above

A

E. All above

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9
Q

Class I lever is ideal. (t/f)

```
RPI is an example of a class I lever.
t/f
~~~

A

a. False (Class II ideal) ; false (RPI is Class II)

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10
Q

Wrought wire needs an elongation factor of

A

more than 6%

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11
Q

Cheek biting is caused by:
a. Lack of horizontal overlap
b. Mandibular teeth too far buccal
C. BOTH

A

BOTH

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12
Q

Which of the following doesn’t call for a rebase?

A

Dentition or moveable

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13
Q

______ _____:

a. anterior guidance is where the front teeth ensure that the back teeth don’t
contact when the mandible is slid forward. Posterior teeth can take longitudinal forces but are not good at taking off center forces

b. in notes: anterior teeth disclude the posterior teeth when mandible moves in
protrusion

i. contacts between posterior teeth during excursive movements
are considered interferences that create damaging effects on the teeth and periodontium ii. these create off-axis forces in posterior teeth, where you’re close to the TMJ =high load in off-axis direction = damage to teeth

A

anterior guidance

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14
Q

Which of the following are involved in support?

a. Rest
b. Major connector
c. Denture base
d. All of the above

A

all above

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15
Q

Which of the following is most commonly used to make denture bases?

A

PMMA

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16
Q

Which of the following is true about PIP?

a. PIP means pink inidicating paste
b. Should be put on camio surfaces
c. Should be put in great amounts
d. Should be in brush strokes

A

D. Should be in brush strokes

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17
Q 
If clasps are tight on a class III with half round cast circumferential clasp you use what to
adjust
a. No. 139 plier 
b. Hemostat 
c. No. 200 plier 
d. Remake
A

A. No. 139 plier

18
Q

The surveyor is used for

a. Undercuts
b. interferences
c. path of draw
d. all above

A

all above

19
Q

If there isn’t a lot of interarch space use what for denture base

A

metal

20
Q

t/f:

All distal extension cases require clinical remount. 
All class 3 require clinical remount.
A
  • first is true, second is false
  • all tooth tissue borne RPD will require a clinical remount (bc tissue moves up to 2mm in pt’s mouth)
  • class 3 is tooth supported
21
Q

Chromium cobalt shrinks

A

2.2-2.4%

22
Q

What do you need for clinical remount?

A

(Answer:) interocclusal record

from notes: Clinical remounting procedure

  • facebow preservation
  • pick-up impression
  • block-out undercuts
  • remount cast and intra-occlusal record
  • articulation
  • selective grinding
  • adjusting retentive clasp
23
Q

Which of the following is not an advantage of Chromium-Cobalt alloys

a. Low density (weight)
b. High modulus of elasticity (stiffness)
c. Low material cost
d. Resistance to tarnish
e. Increased flexibility

A

e. increased flexibility

24
Q

Kelly’s Combination Syndrome would present as all except:

a. Lack of osseous tissue in the anterior maxilla
b. Loose tissue in the posterior maxilla
c. Intrusion of the mandibular anteriors
d. Cystic palatine nerve

A

Intrusion of Mandibular Molars

25
Q

t;/f:

Guide plane should be ½ distance between cusp tips. Guide plane is as wide as rest.

A

true and true

26
Q

t/f:
Gingival margin to superior border of lingual bar is 3-4 mm.

Measure the distance on the
cast.

A

true then false (always do in mouth)

27
Q

Beaded border depth is

A

depth of 1 mm

28
Q

If you have a large inoperable tori you need to use

A

horseshoe

29
Q

I bar with distal extension does not use:

A

DF undercut

30
Q

Papillary hyperplasia is all except

a. Destructive bone disease
b. form of denture stomatitis
c. characterized by multiple red inflamed papules

d. caused by local irritation, poor fitting dentures, poor oral hygeine, and leaving
dentures in 24/7

e. Part of treatment is soaking dentures for 30 min in 1% sodium hypochlorite sol.

A

A. destructive bone disease

31
Q

Cingulum rest is placed between the incisal and middle one third of incisors.

A

FALSE

32
Q

A positive rest for a cingulum rest is used because:

A

a. It prevents lateral movement -engages better, directs forces toward long axis

33
Q

A surveyed crown is indicated when

a. The survey line is in the gingival 1/3
b. No undercuts exists on abutment teeth
c. With the help of enameloplasty, one cannot have the changes necessary for the abutment teeth without cutting into dentin
d. All of the above are true

A

all above are true

34
Q

Indirect retainers have all of the following characteristics except:

a. It’s a DO rest on a posterior abutment
b. placed as far anteriorly from fulcrum line as possible
c. placed perpendicular to fulcrum line

A

A. DO rest on a posterior abutement

35
Q

Hyperplastic tissue should be removed prior to construction of your RPD to

A

a. Provide a firm, stable base for the denture

36
Q

t/f: Internal surface of RPD should be at 90 degrees (butt joint).

A

true

37
Q

External surface of RPD should be at <90 degrees and is between what two surfaces?

a. acrylic and metal
b. acrylic and tissue
c. metal and tissue

A

A. acrylic and metal

38
Q

Tooth contouring (i.e. survey lines) should be done_______ the survey crown is made

A

before

39
Q

Why do we tripod the cast?

A

To be able to recreate the path of insertion

40
Q

Gagging occurs due to:

a. Decrease VDO
b. Faulty impression
c. Overextension
d. All of the above

A

all above

41
Q

What gets removed during the altered cast technique?

A

distal extensions

42
Q

You can determine if you need a reline if

A

The indirect retainer doesn’t contact the tooth when you push on the distal extensions

Removable Partial Pros: Final Practice Exam (1 decks)

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